111434140 has 24 divisors (see below), whose sum is σ = 236834640. Its totient is φ = 44035968.

The previous prime is 111434137. The next prime is 111434173. The reversal of 111434140 is 41434111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31905 + ... + 35224.

It is an arithmetic number, because the mean of its divisors is an integer number (9868110).

Almost surely, 2^111434140 is an apocalyptic number.

111434140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111434140 is an abundant number, since it is smaller than the sum of its proper divisors (125400500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111434140 is a wasteful number, since it uses less digits than its factorization.

111434140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67221 (or 67219 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 111434140 is about 10556.2370189381. The cubic root of 111434140 is about 481.2152942870.

Adding to 111434140 its reverse (41434111), we get a palindrome (152868251).

The spelling of 111434140 in words is "one hundred eleven million, four hundred thirty-four thousand, one hundred forty".